The foodstuff, carbohydrate, is essentially a packet of hydrogen, a hydrogen supplier, a hydrogen donor, and the main event during its combustion is the splitting off of hydrogen.

- Albert Szent-Gyorgyi

The cars haven't advanced that much since we were kids. When you boil it down, it's still a gas combustion engine.

- Dana Brunetti

The way plays happen, at least with me, it's spontaneous combustion of things you've had in your head.

- Frank D. Gilroy